import os import datetime import time import pandas as pd def follow_up_handle(): '''后续处理''' object_dir = "./predictions" output_dir = "./keep" # 创建输出目录 os.makedirs(output_dir, exist_ok=True) # 检查目录是否存在 if not os.path.exists(object_dir): print(f"目录不存在: {object_dir}") return # 获取所有以 future_predictions_ 开头的 CSV 文件 csv_files = [] for file in os.listdir(object_dir): if file.startswith("future_predictions_") and file.endswith(".csv"): csv_files.append(file) if not csv_files: print(f"在 {object_dir} 中没有找到 future_predictions_ 开头的 CSV 文件") return csv_files.sort() # 调试分支 # target_time = "202603271700" # matching_files = [f for f in csv_files if target_time in f] # if matching_files: # last_csv_file = matching_files[0] # print(f"指定时间的文件: {last_csv_file}") # else: # print(f"未找到时间 {target_time} 的预测文件") # return # 正式分支 last_csv_file = csv_files[-1] # 只看最新预测的文件 print(f"最新预测文件: {last_csv_file}") if last_csv_file.startswith("future_predictions_") and last_csv_file.endswith(".csv"): target_time = last_csv_file.replace("future_predictions_", "").replace(".csv", "") else: target_time = datetime.datetime.now().strftime("%Y%m%d%H%M") # 读取最新预测文件 last_csv_path = os.path.join(object_dir, last_csv_file) df_last_predict = pd.read_csv(last_csv_path) df_last_predict_will_drop = df_last_predict[df_last_predict["will_price_drop"] == 1].reset_index(drop=True) df_last_predict_not_drop = df_last_predict[df_last_predict["will_price_drop"] == 0].reset_index(drop=True) print(f"最新预测文件中，预测降价的航班有 {len(df_last_predict_will_drop)} 条，预测不降价的航班有 {len(df_last_predict_not_drop)} 条") # 建一张 维护表 keep_info.csv 附加一个维护表快照 keep_info_{target_time}.csv keep_info_path = os.path.join(output_dir, "keep_info.csv") keep_info_snapshot_path = os.path.join(output_dir, f"keep_info_{target_time}.csv") key_cols = ["citypair", "flight_numbers", "baggage_weight", "from_date"] # 去重操作 df_last_predict_will_drop = df_last_predict_will_drop.drop_duplicates( subset=key_cols, keep="last" ).reset_index(drop=True) # df_last_predict_not_drop = df_last_predict_not_drop.drop_duplicates( # subset=key_cols, keep="last" # ).reset_index(drop=True) # 读取维护表 if os.path.exists(keep_info_path): try: df_keep_info = pd.read_csv(keep_info_path) except Exception as e: print(f"读取维护表失败: {keep_info_path}, error: {str(e)}") df_keep_info = pd.DataFrame() else: df_keep_info = pd.DataFrame() def _parse_dt(yyyymmddhhmm): try: return datetime.datetime.strptime(str(yyyymmddhhmm), "%Y%m%d%H%M") except Exception: return None current_dt = _parse_dt(target_time) prev_dt = None hud_decrement = 1 # if not df_keep_info.empty and "last_predict_time" in df_keep_info.columns: # prev_candidates = ( # df_keep_info["last_predict_time"].dropna().astype(str).tolist() # ) # if prev_candidates: # prev_dt = _parse_dt(max(prev_candidates)) if prev_dt is None: snapshot_times = [] for f in os.listdir(output_dir): if ( f.startswith("keep_info_") and f.endswith(".csv") and f != f"keep_info_{target_time}.csv" ): ts = f.replace("keep_info_", "").replace(".csv", "") dt = _parse_dt(ts) if dt is not None: snapshot_times.append(dt) if snapshot_times: prev_dt = max(snapshot_times) if current_dt is not None and prev_dt is not None: delta_seconds = (current_dt - prev_dt).total_seconds() if delta_seconds >= 0: hud_decrement = max(0, int(delta_seconds // 3600)) else: hud_decrement = 0 # 初始化维护表 if df_keep_info.empty: df_keep_info = df_last_predict_will_drop.copy() df_keep_info["into_update_hour"] = df_keep_info['update_hour'] # df_keep_info["into_price"] = df_keep_info['price_total'] df_keep_info["keep_flag"] = 1 # df_keep_info["last_predict_time"] = target_time df_keep_info.to_csv(keep_info_snapshot_path, index=False, encoding="utf-8-sig") print(f"维护表快照已保存: {keep_info_snapshot_path} (rows={len(df_keep_info)})") df_keep_info.to_csv(keep_info_path, index=False, encoding="utf-8-sig") print(f"维护表已初始化: {keep_info_path} (rows={len(df_keep_info)})") # 已存在维护表 else: if "keep_flag" not in df_keep_info.columns: df_keep_info["keep_flag"] = 0 df_keep_info["keep_flag"] = ( pd.to_numeric(df_keep_info["keep_flag"], errors="coerce") .fillna(0) .astype(int) ) missing_cols = [c for c in key_cols if c not in df_keep_info.columns] if missing_cols: print(f"维护表缺少字段: {missing_cols}, path={keep_info_path}") return for c in key_cols: df_last_predict_will_drop[c] = df_last_predict_will_drop[c].astype(str) # df_last_predict_not_drop[c] = df_last_predict_not_drop[c].astype(str) df_keep_info[c] = df_keep_info[c].astype(str) df_keep_info = df_keep_info.drop_duplicates(subset=key_cols, keep="last").reset_index(drop=True) # 提取两者的标志位 df_last_keys = df_last_predict_will_drop[key_cols].drop_duplicates().reset_index(drop=True) df_keep_keys = df_keep_info[key_cols].drop_duplicates().reset_index(drop=True) df_last_with_merge = df_last_predict_will_drop.merge( df_keep_keys, on=key_cols, how="left", indicator=True ) # 场景一: 如果某一行数据在 df_last_predict_will_drop 出现，没有在 df_keep_info 里 df_to_add = ( df_last_with_merge.loc[df_last_with_merge["_merge"] == "left_only"] .drop(columns=["_merge"]) .copy() ) # keep_flag 设为 1 if not df_to_add.empty: df_to_add['into_update_hour'] = df_to_add['update_hour'] # df_to_add['into_price'] = df_to_add['price_total'] df_to_add["keep_flag"] = 1 df_keep_with_merge = df_keep_info.reset_index().merge( df_last_keys, on=key_cols, how="left", indicator=True ) # 场景二: 如果某一行数据在 df_last_predict_will_drop 和 df_keep_info 里都出现 matched_idx = df_keep_with_merge.loc[df_keep_with_merge["_merge"] == "both", "index"].tolist() # 场景三: 如果某一行数据在 df_last_predict_will_drop 没有出现，却在 df_keep_info 里都出现 keep_only_idx = df_keep_with_merge.loc[df_keep_with_merge["_merge"] == "left_only", "index"].tolist() # 符合场景二的索引 (在 df_keep_with_merge 中) if matched_idx: df_matched_keys = df_keep_info.loc[matched_idx, key_cols] df_latest_matched = df_matched_keys.merge( df_last_predict_will_drop, on=key_cols, how="left" ) # 将 df_keep_info 的 df_matched_keys 的内容更新为 df_last_predict_will_drop 里对应的内容 update_cols = [c for c in df_last_predict_will_drop.columns if c not in key_cols] for c in update_cols: if c == "keep_flag": continue if c not in df_keep_info.columns: df_keep_info[c] = pd.NA df_keep_info.loc[matched_idx, c] = df_latest_matched[c].values # 重新标记 原来是1 -> 0 原来是0 -> 0 原来是2 -> 0, 原来是-1 -> 1 old_flags = df_keep_info.loc[matched_idx, "keep_flag"] df_keep_info.loc[matched_idx, "keep_flag"] = old_flags.apply( lambda x: 0 if x in (0, 1, 2) else (1 if x == -1 else 1) ) # 符合场景三的索引 (在 df_keep_with_merge 中) if keep_only_idx: mask_keep_only = df_keep_info.index.isin(keep_only_idx) # 布尔索引序列 # 如果 df_keep_info 的 keep_flag 大于等于0 mask_need_observe = mask_keep_only & (df_keep_info["keep_flag"] >= 0) # 布尔索引序列 if mask_need_observe.any(): if "hours_until_departure" not in df_keep_info.columns: df_keep_info.loc[mask_need_observe, "keep_flag"] = -1 else: hud = pd.to_numeric( df_keep_info.loc[mask_need_observe, "hours_until_departure"], errors="coerce", ) # hours_until_departure自动减1 # new_hud = hud - 1 new_hud = hud - hud_decrement df_keep_info.loc[mask_need_observe, "hours_until_departure"] = new_hud df_keep_info.loc[mask_need_observe, "keep_flag"] = -1 # 删除标志 # 将 df_to_add 添加到 df_keep_info 之后 add_rows = len(df_to_add) if "df_to_add" in locals() else 0 if add_rows: df_keep_info = pd.concat([df_keep_info, df_to_add], ignore_index=True) df_keep_info_snapshot = df_keep_info.copy() df_keep_info_snapshot.to_csv(keep_info_snapshot_path, index=False, encoding="utf-8-sig") print( f"维护表快照已保存: {keep_info_snapshot_path} (rows={len(df_keep_info_snapshot)})" ) # 移除 keep_flag 为 -1 的行 before_rm = len(df_keep_info) df_keep_info = df_keep_info.loc[df_keep_info["keep_flag"] != -1].reset_index(drop=True) rm_rows = before_rm - len(df_keep_info) # 保存更新后的 df_keep_info 到维护表csv文件 df_keep_info.to_csv(keep_info_path, index=False, encoding="utf-8-sig") print( f"维护表已更新: {keep_info_path} (rows={len(df_keep_info)} add={add_rows} rm={rm_rows})" ) pass if __name__ == "__main__": time.sleep(5) follow_up_handle() time.sleep(5) from descending_cabin_task import main as descending_cabin_task_main descending_cabin_task_main()